如何解决Java Rest API | Linux | HTTPS 443连接被拒绝|代码可以从本地正常运行，但不能在服务器上运行平安退还？

以下URL在邮递员中正常工作，而以下代码在我的Eclipse中工作正常：

        String fullUrl = "https://edge.chabdee.com/api/WebMethod?webMethodName=MDMChangeCustomerAccount";
        URL url = new URL(fullUrl);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        String auth = "User:guf!YN8";
        byte[] encodedAuth = Base64.getEncoder().encode(auth.getBytes(StandardCharsets.UTF_8));
        String authHeaderValue = "Basic " + new String(encodedAuth);
        conn.setRequestProperty("Authorization",authHeaderValue);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type","application/json");

        
        conn.setDoOutput(true);
        conn.setRequestProperty("Content-Length",String.valueOf(input.length()));
        OutputStream os = conn.getoutputStream();
        os.write(input.getBytes());
        os.flush();
        if (conn.getResponseCode() != 200) {
               throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
        }
        BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));
        StringBuilder sb = new StringBuilder();
        String output;
        while ((output = br.readLine()) != null) {
               sb.append(output);
        }
        System.out.println(sb.toString());
        conn.disconnect();

当我在服务器上部署代码时，它说：

Exception in thread "main" java.net.ConnectException: Connection refused (Connection refused)
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.socksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.socket.connect(Socket.java:589)
        at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:668)
        at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
        at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
        at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:200)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1157)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
        at sun.net.www.protocol.http.HttpURLConnection.getoutputStream0(HttpURLConnection.java:1316)
        at sun.net.www.protocol.http.HttpURLConnection.getoutputStream(HttpURLConnection.java:1291)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.getoutputStream(HttpsURLConnectionImpl.java:250)
        at RestClientPost.main(RestClientPost.java:78)

当我远程登录或卷曲服务器时，它说：

 curl: (7) Failed connect to edge.chabdee.com:443; Connection refused

知道为什么会这样吗？

我已通过删除身份验证更改了代码并添加了以下代码

Authenticator.setDefault(new Authenticator() {
        @Override
        protected PasswordAuthentication getpasswordAuthentication() {
          return new PasswordAuthentication("User","secretpw".tochararray());
        }
      });

但是出现类似错误。相同的任何建议

解决方法

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